A new energy saving storage system: SERAID for disk array

Fei Wu; Huaixiang Hu; Ke Liu

doi:10.1117/12.822603

19 March 2009 A new energy saving storage system: SERAID for disk array

Fei Wu, Huaixiang Hu, Ke Liu

Proceedings Volume 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage; 71251I (2009) https://doi.org/10.1117/12.822603
Event: Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 2008, Wuhan, China

Abstract

Recently, high-energy consumption has become a serious concern for both storage servers and data centers. Recent research studies have utilized the short response times of multiple speed disks to decrease energy consumption. However, very few manufactures can produce the multiple speeds hard disk because of its complexity. The main limitation to MAID system is that we must assume the frequently accessed data is less than 5%, in fact, in most strong coupling system, the data can't be cached due to the access pattern and moreover the first accessed data which are usually frequently accessed are not cached, as a result, system performance is heavily degraded. In this paper, we propose the new storage system called saving energy RAID (SERAID), in which we place the frequently accessed data into solid state disks (SSD) and place the less frequently accessed ones into conventional hard disks (CHD). Because the energy consumption is very low and the random read/write rate is very fast in SSD, we can get high availability and high saving energy RAID system at the expense of very few costs. The simulation result shows that the random write performance of SERAID is 10 times rapid than those of traditional RAID and the random read performance of SERAID is 5 times rapid than those of conventional RAID. Besides that, the mean energy consumption of SERAIDsystem is lower than that of traditional RAID.

Citation Download Citation

Fei Wu, Huaixiang Hu, and Ke Liu "A new energy saving storage system: SERAID for disk array", Proc. SPIE 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 71251I (19 March 2009); https://doi.org/10.1117/12.822603

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available